You can easily do so using the IRR function.

You simply have to add your set NPV to the cashFlow at time 0 and look what 
your IRR is going to be. By definition, that irr is going to be the 
discount rate that permit you to obtain your set NPV.



Le jeudi 21 juin 2012 05:21:40 UTC-4, ANKUR AGGARWAL a écrit :
>
> Let me redefine the problem,
>
> We are getting NPV values from some data base. Based on NPV value, we have 
> to automate a process which will back calculate the discount rate using NPV 
> formula in excel. 
>
> In excel, goal seek will serve the purpose, but since you will refresh NPV 
> values, one has to manually perform goal seek each time.
>
> One solution is that we need to have a button to suffice the required need 
> but we do not want macro, we need an excel formula, can any formula is 
> possible which wil be dynamic enough to do so. To my knowledge it's not 
> possible. But I wants expert comment.
>
> Please let me know  asap. Its very urgent. 
>  
> Warm Regards
> Ankur Aggarwal
>
>
>   ------------------------------
> *From:* NOORAIN ANSARI <noorain...@gmail.com <javascript:>>
> *To:* excel-...@googlegroups.com <javascript:> 
> *Sent:* Thursday, 21 June 2012 1:39 PM
> *Subject:* Re: $$Excel-Macros$$ Automating a goal seek using an excel 
> formula
>  
> Dear Ankur,
>
> Can you share a sample workbook with group.
>
>
> -- 
> Thanks & regards,
> Noorain Ansari
> www.noorainansari.com
> www.excelmacroworld.blogspot.com
>
> On Thu, Jun 21, 2012 at 1:32 PM, ANKUR AGGARWAL 
> <ankur9_a...@yahoo.co.in<javascript:>
> > wrote:
>
> Thanks Noorain for the reply but I need a dynamic excel formula to do the 
> same. I have the macro but we wanted to have a dynamic excel formula. Is it 
> possible?
>  
> Warm Regards
> Ankur Aggarwal
> 91-8010614628
> Analyst
> Mckinsey Knowledge Center
> Mckinsey & Co.
>
>   ------------------------------
> *From:* NOORAIN ANSARI <noorain...@gmail.com <javascript:>>
> *To:* excel-...@googlegroups.com <javascript:> 
> *Sent:* Thursday, 21 June 2012 11:13 AM
> *Subject:* Re: $$Excel-Macros$$ Automating a goal seek using an excel 
> formula
>  
> Dear Ankur,
>
> Please try it..
>
>
>
>
>
>
>
>
>
> *Sub Dynamic_Goalsheek() Dim i As LongDim sh As WorksheetSet sh = 
> ThisWorkbook.Sheets(1)For i = 2 To sh.Cells(Rows.Count, 
> "A").End(xlUp).Rowsh.Range("I" & i).GoalSeek Goal:=sh.Range("A" & i).Value, 
> ChangingCell:=sh.Range("E" & i) Next iEnd Sub*
> See attached sheet hope it will help to you
> else 
> share a sample workbook with group.
>
>
> -- 
> Thanks & regards,
> Noorain Ansari
> www.noorainansari.com
> www.excelmacroworld.blogspot.com
>
> On Thu, Jun 21, 2012 at 8:59 AM, ANKUR AGGARWAL 
> <ankur9_a...@yahoo.co.in<javascript:>
> > wrote:
>
> Experts, is it at all possible to automate goal seek function using an 
> excel formula without a macro. Set value in goal seek function will get 
> refreshed every day, we don't want to manually apply goal seek each time 
> neither wanna use the macro to automate that. 
>
> Can it be done using any dynamic excel formula  ?
>
>  
> Warm Regards
> Ankur Aggarwal
> Analyst
>
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